The animation of Bai Yuan and the Ghost King is called Chang 'an Demon Song Comics. According to relevant public information, the story happened in the Kaiyuan period of the Tang Dynasty, an imperial city-Chang 'an. No one knows that Duanmu Mingde, the landlord of the first brothel in Chang 'an, turned out to be a fox demon. The young exorcist Bai Yuan is the most proud disciple of the exorcist family. He is good at exorcism and hates evil, but he is forced to live in this monster's nest with a sexy fox, a cold white wolf, a proud sun and a Virgo.